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【v5.4】partially initialized module 'yaml' has no attribute '__with_libyaml__'

See original GitHub issue

Hi there, Thank you for releasing the new version 5.4. When I imported version 5.4, I found the following error and would like to report it.

2021-01-20 12:23:20 import yaml
2021-01-20 12:23:20 File "/root/.local/lib/python3.8/site-packages/yaml/__init__.py", line 13, in <module>
2021-01-20 12:23:20 from .cyaml import *
2021-01-20 12:23:20 File "/root/.local/lib/python3.8/site-packages/yaml/cyaml.py", line 7, in <module>
2021-01-20 12:23:20 from _yaml import CParser, CEmitter
2021-01-20 12:23:20 File "/usr/local/lib/python3.8/site-packages/_yaml/__init__.py", line 8, in <module>
2021-01-20 12:23:20 if not yaml.__with_libyaml__:
2021-01-20 12:23:20 AttributeError: partially initialized module 'yaml' has no attribute '__with_libyaml__' (most likely due to a circular import)

The reproduced environment is python: 3.8-slim docker image.

Issue Analytics

State:
Created 3 years ago
Reactions:13
Comments:23 (14 by maintainers)

Top GitHub Comments

4reactions

nitzmahonecommented, Jan 20, 2021

Release 5.4.1 in flight with the fix.

3reactions

thanos1983commented, Jan 20, 2021

upgrading pyyaml version in requirements.txt file fixed this issue for me. PyYAML==5.4

For me actually going from PyYAML==5.2.1 to 5.4 broke my ansible.

The solution was to revert to 5.3.

Sample of problem:

$ ansible --version
Traceback (most recent call last):
  File "/usr/local/bin/ansible", line 62, in <module>
    import ansible.constants as C
  File "/home/<user>/.local/lib/python3.8/site-packages/ansible/constants.py", line 15, in <module>
    from ansible.config.manager import ConfigManager, ensure_type, get_ini_config_value
  File "/home/<user>/.local/lib/python3.8/site-packages/ansible/config/manager.py", line 17, in <module>
    from yaml import load as yaml_load
  File "/home/<user>/.local/lib/python3.8/site-packages/yaml/__init__.py", line 13, in <module>
    from .cyaml import *
  File "/home/<user>/.local/lib/python3.8/site-packages/yaml/cyaml.py", line 7, in <module>
    from _yaml import CParser, CEmitter
  File "/usr/local/lib/python3.8/dist-packages/_yaml/__init__.py", line 8, in <module>
    if not yaml.__with_libyaml__:
AttributeError: partially initialized module 'yaml' has no attribute '__with_libyaml__' (most likely due to a circular import)
$ sudo -H python3 -m pip install PyYAML==5.3
Collecting PyYAML==5.3
Installing collected packages: PyYAML
  Found existing installation: PyYAML 5.4
    Uninstalling PyYAML-5.4:
      Successfully uninstalled PyYAML-5.4
Successfully installed PyYAML-5.3
$ python3 -V
Python 3.8.7
$ ansible --version
ansible 2.10.4
  config file = /home/<user>/cookbook/ansible.cfg
  configured module search path = ['/home/<user>/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/<user>/.local/lib/python3.8/site-packages/ansible
  executable location = /usr/local/bin/ansible
  python version = 3.8.7 (default, Dec 21 2020, 20:10:35) [GCC 7.5.0]

Hope this helps.